So, what is going on here?

[j-c-c-62]

This is a "Shadow" Racing mopar/W2 block, is claimed to be from the decades ago Can Am racing series. A bunch of the engine stuff is being sold as a lot.
I am trying to figure out the two blue AN fittings in the oil filter area. The large center one's purpose is obvious.
The smaller not so much. 180? degrees from the smaller there is an existing oiling threaded port, so how/why the one that is shown, and where does it get fed from or to? It almost seems undersized for high level all out racing.
I am unaware that new location provides any/better access to internal oiling and have never seen it used if I am understanding what is going.
The Ebay listing is an interesting historical read BTW, search CanAm Shadow.

 

[Rick@Laysons]

Maybe some sort of dry sump set-up??????

 

[ckessel]

Shadow. Boy does that bring back memories! For a time they were Chrysler's west coast skunk works near Laguna Seca. Lee Muir[ met him] and King Richard[ Petty] were the ones who developed the W2 program plus many other cool programs. F5000 with the Lucas injected A-motor. They were also involved with McLaren for awhile. He did the machine work on my stroked 340[ 360 crank] in the mid 80's. I had to get a half set of the bushed W2 rockers and pushrods from him due to the oiling holes in the shafts being 90* off from where they needed to be. Factory screwup, Lee told the Chrysler engineers about it, but never got fixed. Anyway, to answer your question, yes on the holes. I can look in my Kit Car manuals later today to see who was who, but one is out and the other in. I ran a remote Oberg/Gemini filter on my engine and those were the two ports to use.

 

[ckessel]

Here you go. I was wrong on one of the holes.

 

[j-c-c-62]

Thank you, but that does not agree with the original pic I posted, the small fitting is on the front side of the motor.
These two pics are my remote cooler/filter plumbing solution.

I am assuming it's an oil connection with no evidence other than proximity, could it be simply a water port or drain?